datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,04 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,04 5:30:00,30 ,       0,0.988769,0.163728,0.271867
sgpcmbeC1.c1,2001,04 6:30:00,30 ,0.447541,31.40695,13.14994,9.337957
sgpcmbeC1.c1,2001,04 7:30:00,30 ,2.176125, 81.1001,44.18319,25.65924
sgpcmbeC1.c1,2001,04 8:30:00,30 ,6.097273,123.2955,76.59805,41.91483
sgpcmbeC1.c1,2001,04 9:30:00,30 , 6.24518, 155.219,99.82901,54.87512
sgpcmbeC1.c1,2001,0410:30:00,30 ,8.587056,175.6766,114.9993,61.07596
sgpcmbeC1.c1,2001,0411:30:00,30 ,28.27681,196.3743,126.9624,62.43351
sgpcmbeC1.c1,2001,0412:30:00,30 ,25.03012, 194.646,128.8937,60.46579
sgpcmbeC1.c1,2001,0413:30:00,30 ,23.75277,190.6078,128.7952,52.28442
sgpcmbeC1.c1,2001,0414:30:00,30 , 17.3271, 177.844,126.3433,47.42871
sgpcmbeC1.c1,2001,0415:30:00,30 ,22.35005,154.1991,115.1924,36.18948
sgpcmbeC1.c1,2001,0416:30:00,30 ,17.23407,120.0586,82.66588,31.87435
sgpcmbeC1.c1,2001,0417:30:00,30 ,11.38356,75.93472,50.30097,19.64011
sgpcmbeC1.c1,2001,0418:30:00,30 ,2.189437,25.20992,14.02853,7.501906
sgpcmbeC1.c1,2001,0419:30:00,29 ,       0,0.701069,0.093818,0.183669
sgpcmbeC1.c1,2001,0420:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0421:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0422:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0423:30:00,30 ,       0,       0,       0,       0